Presentation is loading. Please wait.

Presentation is loading. Please wait.

Recent ATLAS results Woochun USC Physics Seminar April 13, 2011 The ATLAS detector Heavy Flavor Physics at ATLAS Observation of Charmonium, Upsilon.

Similar presentations


Presentation on theme: "Recent ATLAS results Woochun USC Physics Seminar April 13, 2011 The ATLAS detector Heavy Flavor Physics at ATLAS Observation of Charmonium, Upsilon."— Presentation transcript:

1 Recent ATLAS results Woochun USC Physics Seminar April 13, 2011 The ATLAS detector Heavy Flavor Physics at ATLAS Observation of Charmonium, Upsilon & Charm Mesons Inclusive differential cross-section of J/  production and Charm Mesons. Measurement of the fraction of non-prompt J/  decays & non- prompt cross sections Exclusive B-meson decays. Higgs Search at ATLAS (not today) Summary and Outlook April 13, 2011W. Park USC Physics Seminar1

2 April 13, 2011W. Park USC Physics Seminar2

3 The ATLAS Muon Spectrometer Crucial measurement by CSC before toroidal field and materials. High counting rate area near the beam axis ( > 200Hz/cm 2 ) Excellent track resolution ~60  m. Good two track resolution Good time resolution ~7ns 3 planes of trigger and precision chambers individually o Barrel: sagitta measurement o Endcap: point-angle measurement MDT TGC CSC RPC April 13, 2011W. Park USC Physics Seminar3

4 April 13, 2011W. Park USC Physics Seminar4

5 April 13, 2011W. Park USC Physics Seminar5

6 April 13, 2011W. Park USC Physics Seminar6

7 Observation of  cJ (1P) Measurement of the  c cross-section in 7TeV pp collision is interesting topic being actively worked by many theorists. Theoretical prediction of the  c production cross-sections is difficult due to P-wave divergences in the theory. One of the significant uncertainty of J/  cross-section measurement is  c contribution through  J/  Measurement of  c cross-section will benefic J/  cross-section measurement. Two approaches: – Calorimetric Photon Information – Tracking Photon Information (ee pair conversion) W. Park USC Physics Seminar7April 13, 2011 Mass (MeV) Mass-M(J/  BF(%) of  J/   c ± 0.08  c ± 1.5  c ± 0.8

8 April 13, 2011W. Park USC Physics Seminar8

9 April 13, 2011W. Park USC Physics Seminar9

10 April 13, 2011W. Park USC Physics Seminar10

11 April 13, 2011W. Park USC Physics Seminar11

12 D *+ Cross-section Measurement using D 0  K3  April 13, 2011 Validated result with independent decay channel. W. Park USC Physics Seminar12

13 April 13, 2011W. Park USC Physics Seminar13

14 April 13, 2011W. Park USC Physics Seminar14

15 April 13, 2011W. Park USC Physics Seminar15

16 Evaluate Tracking Performance D *+  D 0  ; D 0  K3  D *+  D 0  ; D 0  K  April 13, 2011W. Park USC Physics Seminar16

17 April 13, 2011W. Park USC Physics Seminar17

18 April 13, 2011W. Park USC Physics Seminar18

19 April 13, 2011W. Park USC Physics Seminar19

20 April 13, 2011W. Park USC Physics Seminar20

21 April 13, 2011W. Park USC Physics Seminar

22 April 13, 2011W. Park USC Physics Seminar22

23 April 13, 2011W. Park USC Physics Seminar23

24 April 13, 2011W. Park USC Physics Seminar24

25 April 13, 2011W. Park USC Physics Seminar25

26 April 13, 2011W. Park USC Physics Seminar26

27 April 13, 2011W. Park USC Physics Seminar27

28 April 13, 2011W. Park USC Physics Seminar28

29 April 13, 2011W. Park USC Physics Seminar29


Download ppt "Recent ATLAS results Woochun USC Physics Seminar April 13, 2011 The ATLAS detector Heavy Flavor Physics at ATLAS Observation of Charmonium, Upsilon."

Similar presentations


Ads by Google